SO, my cruise control started acting up the other night when i went to drive home. All the lights came on but no cruise control. once then engine got warm and stayed warm, about 10min of freeway driving it worked fine. The same thing happens early in the morning, but not during the day when it is warm outside. What could it be?

yeah my cruise control on my 99 RS seems to not work anymore too. I press in the ON/OFF buttons, set it and still dose not work anymore.. Do u know what kind of shop i can take my car to fix the problem? errrrr... i hate this kinda problems >_<

well, mine works fine when it's warm, or after the car has been running for a long time

still having problem, it's gotten to the point to where it doesnt work at all. THe other day i made a realy hard U-turn and it started working any ideas?

I am having problems with mine as well. It doesn't work at all. All the lights come on and everything's hooked up, it just won't work.

I'm thinking maybe a new motor for it? or maybe a sensor?


Hard left turn? hmmmmm..... That could be like a loose or bad connection. The turn may have made it shift just a little so it made contact.....

How the hell did you get cruise control on a 99 RS? I miss it so so much.

Find the control unit, make sure the vacuum lines aren't broken.

you think cold vacuum lines could be cracked and when they are warm they expand and seal the cracks?

check them

I hope that's the problem with mine.

You never realize just how good you had it, until it's gone do you? **tear**

SOOO, my Cruise control is dead now, just stopped working all together. I thought it might be a vacuum problem but now i'm not convinced, i checked the vacuum lines to the thing and they are fine. no leaks. All the lights come on in the dash and it even downshifts if i hit resume after i've set it, let it slow down and then resume. So i'm thinking it's not electrical either? What do you all think? it's really annoying cuz i drive ALOT where CC is nice.

Open the box up make sure the spindles can spin. check the throttle cables too.

what box? the black one on the firewall that the throttle goes in? or the cruise unit itself?

The cable should go from the pedal through the firewall to a box. Check that. if everything looks good then go the black cylinder thing on the firewall.

the cylinder thing being the actual cruise control unit that's actually on the passenger-side inner-fender by the battery, correct?

this thread cracks me up. ive got cruise on my 90, and it works like a charm. when i use it. ive always driven a manual, so letting the car modulate the throttle just feels weird to me.

I don't really know the specifics. I'm just kinda shooting in the dark here.

Well, thanks for admitting that NOW!

yeah, i opened that up, i also disconnected the relay that is bolted to that box. I did that once and the cables all moved ok, the spindles did too, after taking it apart and puting it back together it worked for a few days then stopped working. I've tried the same thing several times now and it wont work again, i tried lubricating the cables and all that but it wont work. I cant figure it out, and it's driving me crazy. If i could find one at a wrecking yard i'd just replace everything in there.

+1 :amen:

I don't know how much longer I can take driving to my cousin's house 2 hours away, all interstate, without it.